Sheet-perforating machine.



H. K. SANDBLL. SHEET PERFORMING MACHINE.

APPLICATION FILED NOV. 27, 1907. 907,530. Patented Dec.22, 1908.

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SHEET PERPORATING MACHINE.

APPLICATION FILED Nov. 27, 1907.

907,530, Patented Dec. 22, 1908.

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APPLICATION 1`ILED'NOV.27, 1807.

Patented Dec. 22, 1908.

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H. K. SANDELL. SHEET EEEEOEATING MACHINE. APPLIOATION FILED NOV. 27,1907. 907,530, Patented Dec. v2.2, 1908.

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HENRY K. SANDELL, OF CHICAGO, ILLINOIS, ASSIGNOR TO HERBERT S. MILLS, OFCHICAGO,

' ILLINOIS.

SHEET-PERFOR-ATING MACHINE.

Specification of Letters Patent.-

Patented Dec. 22, 1908.

Application led November 27, 1907. Serial No. 404,044.

T o all whom tt may concern:

Be it lrnown that I, HENRY K. SANDELL, a citizen of the United States,residing at Ohicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Sheet-Perforating Machines, ofwhich the following is a specification.

'I his invention relates, more especially, to an improvement in theclass of perforating machines for producing the music-sheets employed inself-playing instruments. It may, however, be used for perforatingsheets for other purposes.

rThe motive power which is preferred for controlling the operation of myimproved machine is electricity, and as the machine has been especiallydesigned for erforating paper sheets for use with the e ectricselfplaying violin of .Letters Patent No. 855021, granted to me May 2S,1907, I employ in connection with the machine for producing theperforated sheets substantially the same electrical contact mechanism tobe traversed by the master-sheet and driving mechanism for the latter asare employed in the aforesaid violin-machine to produce playing of theinstrument.

In the accompanying drawings, Figure 1 is a view in side elevation ofthe entire machine; Fig. 2, a broken plan viewT of the same, omittingthe master-roll and contactanechanisms Fig. 3, an enlarged section online A, Fig. 2; Fig. 4, a broken view of the showing of Fig. 3, butrepresenting a punch in its perforating position, while the same isrepresented in its normal retracted position in the preceding figure;Fig. 5, a broken section on line B, Fig. 2, showing the punches inretracted position, and Fig. 6, a similar view showing certain of thepunches depressed 3 Fig. 7, an enlarged broken section on line C, Fig.2, showing a punch engaged and depressed by its reciprocatory operatingrod actuated by an electro-magnet, and Fig. S, a similar view of thesame showing the operating rod retracted and the punch in its raisedposition Fig. 9, a broken perspective view of a slotted plate forguiding the reciprocable punches, of which one is shown, through themedium of an adjustable iinger extending from each into a slot in theplate; Fig. 10, a broken enlarged view showing, in side elevation, oneof the several similar pawl-and-ratchet actuated feed-devices for thewebs of paper undergoing perforation 5 Fig. 11, a broken and partlysectional view of the same in front elevation Fig. 12, a broken sectionon line D, Fig. 13, of the feeding and contact mechanisms for themaster-sheet; Fig. 13,

a section on line E, Fig. 12, and Fig. 14, a

diagram illustrating the generator-circuits in which the electro-magnetsfor depressing the punches are contained.

The generally-described operation of the electrically actuatedperforating machine illustrated is as follows: A master-sheet is fedacross a set of contacts, each having in circuit with it anelectro-magnet, and a sheet to be perforated is fed correspondingly withthe master-sheet across a row of punches. Each electromagnet has apunch-driving rod extending from its armature with its distal endworking through a cam-actuated reciprocating head, each rod coincidingwith a different punch 5 and the outer ends of the punches, in theirnormally retracted position, are below the planes of the driving ends ofthe rods, whereby when a perforation in the traveling master-sheetregisters with a contact the latter closes a circuit containing therespective electromagnet to attract its spring-retracted armature andadvance the rod on the latter through the head to cross the outer end ofthe respective punch and drive it by each downstroke of the head and, bythe vibratory movements of the cani-actuated head, cause the punch tocut inthe traveling sheet to be perforated a perforation correspondingwith that through which the circuit-closure occurred.

The salient feature of the invention is that of the driving-rods workingacross the outer ends of the punches to engage and drive them by themovement of the cam-actuated head.

The mechanism of the machine is sustained on a bed or table 15 extendedat one end into a downwardly-inclined rack-frame 16 on the sides ofwhich are j'ournaled in a series of bearings at suitable intervals aparta plurality of rolls (five being shown) of paper 17 to be perforated. Onthe left-hand side of the machine (regarded from the end of therack-frame) an upright frame 18 rises above the table and supports thefeeding and contact mechanisms 19, (Figs. 11 and 12) for a master-sheet20fed fromaroll 21 journaled in a supplemental frame 22. Themaster-sheet moves across an inclined guide-board 23 having imposed uponit a weight-plate 24 to bear against the paper and keep it taut. Fromthe board 23 the sheet passes about a contactroller 25 and between thelatter and a feedroller 26, and a series of spring contact-fingers 27are supported to engage with the contactroller through the perfor-ationsin the mastersheet as they are brought, in the travel of the sheet, intoregistration with the contacts. The roller 26, which carries on one enda gear- Wheel 28, is journaled in hangers 29 depending from a shaft 30journaled in the frame and carrying on one end a pinion 31 with whichthe gear 28 meshes, and a belt-pulley 32'. An arm 33 extends from theshaft 30 across a set-screw 34 working in a bracket 35 depending fromthe frame, and from the free end of the arm a spring-pressed rod 36passes through the bracket and cooperates therewith against the arm tohold the roller 26 in frictional relation to the roller 25, the force ofthe frictional ressure being adjustable through the me ium of theset-screw. The shaft carrying the roller 25 is pivotally supported atone end and is releasably fastened at its opposite end by a catch-device37 vwhich may be disengaged for releasing the shaft to permit the rollerto be swung on the pivotal end of its shaft, out of the way forinserting between it and the feed-roller 26 a master-sheet.

The pulley 32 has an endless-belt connection 38 with a taperingspeed-changing pulley-device 39 on one end of a shaft 40 journaled inthe frame 15 and carrying on its opposite end a belt-pulley 41.

On a superstructure 42 of the frame 15, rising from about midway betweenthe ends of the latter, is supported the electromagnetcontrolledpunch-mechanism, described as follows: The side members of thesuperstructure are connected, midway between their ends, by a transversebed-plate 43 containing a central longitudinal row of openings andforming a rigidly stationary guide for the punches, hereinafterdescribed. Immediately below this bed-plate and containing a similar rowof punch-openings registering with th'ose in the bed-plate, is supportedthe die or female punch 44 above which and spaced apart from it issupported a punch-guiding plate 45 containing a row of punch-openings,the space between this plate and the die affording a passage throughwhich to feed across the punches the material being cut by them. Similaryokes 46, 46 rise from near opposite ends of the bed-plate and throughthese yokes extend the opposite ends of a horizontal reciprocating headconsisting of a pair of similar parallel anglebars 47 47 secured throughthe ends of their horizontal web-portions to blocks 48, which areconnected together at their bases by 'a punch-raising bar 49 extending,between the blocks, only along one side of the row of punches. Theangle-bars 47 are lspaced' apart between their vertical web# portions,each of which contains a horizontal row of openings for thepunch-driving rods hereinafter described, the openings in each baralternating with those in the other. This reciprocating head issupported at its end-blocks 48 on a drive-shaft 50, journaled inbearings on the base of the superstructure 42, through the medium ofarms 51 pivotally connected with the blocks and extending from thestraps of eccentrics 52 on the ends of the shaft, whereby rotation ofthe latter vibrates the head vertically. Two similar and relativelylarge or thick punches 53, 53 pass through vertical openings in theblocks 48 forming the ends of the reciprocating head, being rigidlyfastened therein to move with the head, and each works through aliningopenings in the bed-plate 43, the guide-plate 45 and the die 44. Thesetwo punches serve to trim the edges of the sheets of paper undergoingperforation to render the finished perforated music-sheet of uniformwidth throughout, since the paper as it comes from the mill is liable tobe nonuniform in width. Between the punches 53 is the row of similarperforating-punches 54, formed with concavities in the extremities oftheir upper ends which extend and are free in the space between theangle-bars 47, these punches passing through the rows of openings in thebed-plate, guide-plate and die, in which they are free to movevertically.

Each punch 54, which registers with a horizontal opening in an angle-bar47, has fastened upon it a finger 55 and these fingers cross thepunch-raising bar 49 and extend at their free ends into verticalguide-slots 56 in the vertically-depending web of an angleplate 57 (Fig.9) which is rigidly supported at and between the ends of its horizontalweb on three similar posts 58 rising from the bedplate 43 along one sideof the reciprocating head. On each of two suitable bearingwalls 59, 59,respectively rising from opposite ends of the superstructure 42, arestably supported an upper row and a lower row of similar ordinaryelectromagnets 60 in U- shaped frames 61 on said walls and in openingsin the outer ends of which work loosely the armatures 62. Each armaturehas extended from it, as shown, a bent rod 63, the free end of whichworks in a horizontal opening in an angle-bar 47 of the reciprocatinghead, such end being resiliently withheld, normally, from a punchregistering with it, by a spring 64 confined about the rod against abearing-wall 59, through an opening 65 in which, of considerably greaterdiameter than the rod, the rod passes.

As will be seen on inspection of the diagram in Fig. 14, eachelectromagnet 60, of which seventy-four are represented, is connected atone end with one pole of an electriccurrent generator, conventionallyrepresented at X, its opposite pole being connected with thecontact-roller 25 engaged by the contacts 27, of which seventy-four areshown and each of which is connected with the opposite end of adifferent electromagnet.

On the shaft 50 is a drive-wheel 66 having a belt-connection 67 with anelectric motor 68 represented in Fig. 1, this shaft being also geared,by an endless belt 69, with the pulley 41 on the shaft 40 to drive thefeed 19 through the medium of the belt 38.

Vith the motor 68 in operation, rotation of the shaft 50 operates thefeed 19 to run the master-sheet 20 across the contact-fingers, thissheet gathering in a suitable receptacle 201. The webs to be perforatedare extended one over the other from the rolls 17 across the die 44,through the space between it and the punch-plate 45, and thus across thepath of the punches, to feeding-devices, hereinafter described, thesewebs passing over an inclined guide-table 7 O and under a weightingplate 71 imposed thereon for exerting tension on the paper.` Rotation ofthe shaft 50 furthermore causes the eccentrics upon it to reciprocatethe said head and with it the ends of the rods 63 in their openings inthe angle-bars 47, but without actuating the punches 54 unless theirmagnets are energized, because these punches are free in the head,though reciprocation of the latter actuates the end-punches 53continuously, because of their rigid connection with the head, to cutthe edge-portions of the webs. All of the punches 54, which arecomparatively light and exert more or less friction in the openingsthrough which they work, normally bear at their cutting ends on theuppermost web of paper passing across them. When a .perforation in thetraveling master-sheet registers with a contact-finger 27, thebranch-circuit containing the latter and its electro-magnet is closed,the resultant energizing of that magnet causes the attraction of itsarmature to protrude the end of the rod 53 extending from it over thepunch 54 registering therewith to engage the concaved extremity of thelatter, and the downward stroke of the head, therefore, causes the rodto drive the punch through the webs. The energized condition of themagnet continues until the perforation in the mastersheet clears thecontact-nger in its path and the head meantime reciprocates, repeatingthe downstrole of the punch to cut the same hole in the webs as that inthe 'master-sheet through which it is actuated. Each upstrole of thehead causes the bar 49 upon it to raise the punch 54, which is guided inits movement by the finger 55 upon it working in a slot in the`guide-plate 57.

Similar co-acting feed-devices 72, all of the same constructionillustrated in Figs. 1() and 1 1, are provided for the perforated webs,one for each. They are supported on a series of steps 7 3 in anextension 74 of the superstructure 42, and each involves theconstruction described as follows: ln the base-portions of similarstandards 75 rising from opposite steps 73 in the extension 74 andcontaining vertical slots 76 in their upper portions, is journaled ashaft 77 carrying, between the standards, a roller 78 and on one end aratchet-wheel 79 engaged by a spring-pressed pawl S0 pivotally fastenedto an arm 81 extending from a sleeve 82 loosely surrounding the shaft.On another shaft 83, having fiattened end-heads 84 slidingly andnon-rotatably confined in the standard-slots 7 5, is rotatably supporteda roller 85 held resiliently against the roller 7 8 by springs S6confined against the heads 84 and adjustably fastened about threadedpins 87 working in the upper ends of the standards. All the arms 81 onone side of the series of devices 72 are pivotally connected with alongitudinally reciprocable bar 88 connected with one end of a link 89,the opposite end of which is eccentrically journaled to an end of thedriveshaft 50. Thus in each rotation of the driveshaft it operates thebar S8 to engage the pawls S0 with the ratchets 79 and thereby rotatethem the extent of one tooth, the arrangement being such as to causeeach step of the resultant step-b v-step movement of the devices toactuate the roller 78 of each to feed the perforated sheet to the extentof the cutting action thereon of a punch 54.

To cause each feed-device to resist tendency of the retractive movementof the pawl 8O against the ratchet 79 to turn backward the shaft 77, afriction-brake is provided, consisting of a peripherally grooved pulley90 on the end of the shaft opposite that carrying the ratchet, and aspringband 91 bears against the Orooved periphery of the pulley.

By providing the pulley 39 on the shaft 4() for connecting at anydiameter thereof the shaft 32 through the medium of the belt 38, thespeed of feeding the master-sheet and webs undergoing perforation may bealike, to cause the perforations in the latter to correspond in lengthwith those in the mastersheet, or the speeds may be differential todecrease or increase the lengths of the perforations in the websrelative to those in the master-sheet for rendering the tempo of playingthe instrument under the control of a perforated music-sheet slower orfaster than that due to the length of perforations in the master-sheet.

What I claim as new and desire to secure by Letters Patent is- 1. In aperforating-machine of the character described, the combination with aframe, of mechanism for feeding sheet-niaterial to' be perforated, arotary drive-shaft carrying eccentrics, a head comprising a pair ofparallel bars provided with rows of transverse rod-openings connected attheir ends in spaced relation to each other and with said eccentrics,and a punch-retracting bar, a row of reciprocable punches With theirouter ends Working in the space between said bars and registering withsaid openings, a slotted guide-plate extending along the row of punches,fingers extending from the punches into the slots of said guideplate,and reciprocable punch-driving rods Working in said openings to engagesaid punch-ends, whereby movement of the head engages the rods with thepunches to drive them.

2. In a perforating-machine of the character described, the combinationwith a frame, of mechanism for feeding sheet-niaterial to be perforated,a rotary shaft supported on said frame and carrying eccentrics, a headconnected with said eccentrics to be reciprocated by rotation of theshaft and provided with transverse rod-openings, independentlyreciprocable punches with their outer ends Working in said head andregistering with the openings therein, a perforated bed-plate forming arigid guide for the punches, electromagnets supported on the frame andhaving spring-retracted armatures provided With rods Working throughsaid openings to engage said punch-ends, an electric circuit containingsaid magnets., cooperating punch-retracting means on the reciprocatinghead and bunches for positively retracting the punc ies by the movementof said head, and master-sheet feedingmechanism provided with electriccontactfingers to be traversed by the master-sheet and contained in saidcircuit, for the purpose set forth.

3. In a perforating-inachine of the char- I acter described, thecombination with a frame, of a rotary drive-shaft carrying eccentrics, ahead connected with said eccentrice to be reciprocated by rotation ofthe shaft, a row of independently reciprocable punches Working in saidhead, reciprocable punch-driving rods extending transversely of thepunches and head and Working in said head to engage at theirend-portions the punches transversely thereof to drive them, and afeed-device for the sheet-material to be perforated consisting of aroller journaled in standards on the frame and carrying a ratchet, aspring-pawl supported to engage said ratchet and having an eccentricconnection With said shaft, and a springpressed roller movably supportedin said standards to coperate With the feed-roller.

fl. ln a perforating-machine of the character described, the combinationwith a frame, of a rotary drive-shaft carrying eccentrics, a headconnected with said eccentrics to be reciprocated by rotation of theshaft, a row of independently reciprocable punches Working in said head,reciprocable punch-driving rods extending transversely of the punchesand head and Working in said head to engage at their end-portions thepunches transversely thereof to drive them, a series of rollapersupports on the frame at one side of t e punches, a feed-device for eachroll supported on the frame at the opposite side of the punches and eachconsisting of a roller journaled in standards and carrying a ratchet, aspring-paWl-carrying finger, and a spring-pressed roller movablysupported in the standards to co erate with the feed-roller, a bar WithWi ich said lingers are pivotally connected, and a link extending fromsaid bar and eccentrically connected with the drive-shaft.

HENRY K. SANDELL.

